can I scan duplicates?

[jingoro2112]

gattlib is great, and does everything I need with one exception: I would like to scan and receive ALL beacon reuquests even if they have been seen before.

This is so I can read data from the name/man data without having to connect.

I know gattlib is a wrapper for bluez but I don't know enough about that interface to figure out where/what I need to do to get this functionality. No matter what I try I only ever get devices enumerated a single time.

[RavenNil]

i am facing the same scene, i have tried the below codes:

while(1){
  gattlib_adapter_open

 // TIMEOUT 4 seconds
  gattlib_adapter_scan_enable_with_filter    
  gattlib_adapter_scan_disable

  gattlib_adapter_close
}

At the beginning, the callback is triggered continuously, but after a while, the callback stops being triggered. However, the infinite loop above is still executing.

[RavenNil]

i think i found the code to edit.
at on_interface_proxy_properties_changed in gattlib_adapter.c

edit

enum _gattlib_device_state old_device_state = gattlib_device_get_state(gattlib_adapter, proxy_object_path);

if (old_device_state == NOT_FOUND) {
    if (has_rssi || has_manufacturer_data) {
        int ret = gattlib_device_set_state(gattlib_adapter, proxy_object_path, DISCONNECTED);
        if (ret == GATTLIB_SUCCESS) {
            gattlib_on_discovered_device(gattlib_adapter, device1);
        }
    }
 }

TO

// enum _gattlib_device_state old_device_state = gattlib_device_get_state(gattlib_adapter, proxy_object_path);

// if (old_device_state == NOT_FOUND) {
    if (has_rssi || has_manufacturer_data) {
        int ret = gattlib_device_set_state(gattlib_adapter, proxy_object_path, DISCONNECTED);
        if (ret == GATTLIB_SUCCESS) {
            gattlib_on_discovered_device(gattlib_adapter, device1);
        }
    }
//  }

AND start the scan indefinitely.